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| The support folks at Wolfram have let me know that the issue is fixed in 11.1. They are working on fixes for earlier versions. |
| http://jonathankinlay.com/2017/01/copulas-risk-management/ Copulas in Risk Management on Page 4 has: SP500returns = Log[Drop[SP500prices[[All, 2]], 1]] - Log[Drop[SP500prices[[All, 2]], -1]]; NASDAQreturns = ... |